System Summary Form (SSF), 2025 Mixed USBC


Team: Dinkin Last Updated Apr 16, 2025 at 21:51
Players: Sam Dinkin - Yoko Sobel

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Bids that Require Advance Preparation

1C 1st/2nd seats=10-14 Art. nf 0+C usually unbal.
1C 3rd/4th seats=13+-17 Art. F1 0+C 13+-14 if bal

1D = Str. Art. 15-37 1st/2nd, 18-37 3rd/4th
1D-1H = Art. Semi-positive (F1 1st/2nd seat 1D)
1D-1S = Art. Double negative
1D-1NT+ = GF Art.

2D-2NT = Inv. 5+ H NF

4m transfer to opposite color major (NAMYATS)

General Bidding Style

Reverse Precision where 1C is nebulous and limited and 1D is like a Precision 1C.

2X = Natural
2m = intermediate 1st/2nd/4th, 6+suit in 1st/2nd, 5+ 3rd/4th, weak or intermediate 3rd
2M weak 1st/2nd/3rd (but may be weak or intermediate 3rd)

1NT=12 to 14 1st/2nd seats
=15 to 17 3rd/4th seats
1NT may have a singleton smaller than the queen

Opening Leads AND Leads in the Middle of the Hand

VS NT: 4th from suits we like; high from suits we don’t.
K asks count/unblock. Q could be from KQ or QJ.

VS suits: 3rd from even, low from odd. A from AKx+ usually, K from AK or switching to singleton, 5-level+ K asks count

Attitude shifts mid-hand (lo=like)

Defensive Signals

UDCA. Generally attitude unless known, then count unless known, then suit preference. We attempt to give count or SP earlier if we judge partner will need it or attitude is irrelevant.